普通合金钢焊接时，一般规定环境湿度在90%RH以上不允许焊接，这给在多雨地区的施工带来很大的不便。
The ordinary alloy steel can't be welded above 90%RH, which is inconvenient to construct in rainy area especially in the south area.
经现场试验表明，用空淬贝氏体钢浇注的颚板，其寿命是普通低合金钢颚板的两倍。
As shown by the experiments, the jaw grinders cast with air-quenched-bainite steel offer a life span twice as long as those made of ordinary low alloy steel.
本文研究了奥氏体不锈钢/普通低合金钢爆焊复合钢板界面熔区的形成。
The paper deals with the formation of melting zone in the interface of explosive cladding austenitic stainless steel/normal low alloy steel system .
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